Machine for manufacturing glass bottles, jars, and the like.



F. W. KNOWLES .& G. W. INMAN. MACHINE FOR MANUFACTURING GLASS BOTTLES, JARS, AND THE LIKE.

APPLICATION FILED FEB.4, 1911.

Patented Sept. 19, 1911.

3 SHEETSSHEET 1- F. W. KNOWLES & G. W. INMAN. MACHINE FOR MANUFACTURING GLASS BOTTLES, JARS, AND THE LIKE.

APPLICATION FILED IEB.4, 1911. 1,003,471. Patented Sept. 19, 1911.

I 3 SHEETS-SHEET 2.

F. W. KNOWLES & G. W. INMAN. MACHINE FOR MANUFACTURING. GLASS BOTTLES, JARS, AND THE LIKE. APPLICATION FILED FEBA, '1911.

1,003,471 v Patented Sept. 19, 1911.

7 3 SHEETSSHEET 3.

' the remainin UNITED STATES PATENT OFFICE.

FREDERICK WILLIAM KNOWLES AND GEORGE 'WILLIAM INMAN, OF THORNHILL LEES, NEAR DEWSTBURY, ENGLAND.

MACHINE FOR MANUFACTURING GLASS BOTTLES, JARS, AND THE LIKE.

Specification of Letters Patent.

Application filed February 4, 1911.

the art to which it appertains to make and use the same. p

In machines for manufacturing glass bottles, jars and the like, of the type inwhich the parison' mold is carried in a turnover bracket, and its two halves are connected by levers to the piston of an air cylinder,

to which cylinder compressed air is admitted for actuating the said levers to" open and close the said mold, it has hitherto been customary to supply the air to the cylinder and that for blowing the bottle through the same pipe, and'therefore at the same pres sure. The pressure necessary to actuate the parison mold is found to beexcessive for blowing the bottle, frequently causing the bottle to shiver or crinkle. g

According to this invention we provide the machine with separate air supplies at dilferent pressures for the mold and cylinder respectively. The bore of the rotary journal of the turnover bracket may be con-. nected direct to the air cylinder'and to a pipe supplying air at, say, 18 or 20 lbs. above atmospheric pressure, while a tube concentric w1th the said journaland within this high pressure airspace maybe connected to the plunger casing and to a pipe supplying air at, say 4' or 5 lbs. above at mospheric ressure, suitable stufiing boxes being provi ed. These pressures are merely.

to the framework 4. A handle 16 actuates a valve in the pipe 14. The high pressure In order that our said invention may be mentioned by way of example as any desired pressures may be use clearly understood, we will now proceed to describe an example of the ap lication thereof tomachines of the type escribed in the specification of the previous Patent No. 957349 granted to the present applicants.

Figure 1 is a plan of such a machine forming one of a set of four on a carriage,

three machines of the set being indicate in outline only. Fig. 2 is a side elevation on a larger scale of the sald machine. Fig. 3 is a sectional elevatlon on a further enlarged scale of the air supplying arrangements. Fig. 4: is a plan corresponding to Fig. 3 and partly in sect1on.

The reference numeral 1 indicates the carriage on which four or other number of machines 2, each comprising a finishing mold 3 with its appurtenances, may be mounted. The machines may of course be fixed to the floor singly, back to back, in threes, or otherwise arranged independently of the carriage, or on a carriage of a different form.

The turnover motion as usual com prises a framework 4 connected to a boss 5 on the end of a tube or sleeve 6 working in ball hearings in a flanged boss 7 which passes through and is secured to the framework of the machine 2, this framework 4 carrying an air cylinder 8, parison mold 9,

connections between the said cylinder and parison mold whereby the two halves of the parison mold are automatically separated upon the framework being turned over so as to invert the said cylinder and 'mold, a plunger adapted to enter the said mold, means for supplying air to the cylinder and air for blowing the bottle, means for operating the plunger and handles for rotating the framework. The present invention is only concerned with the air supplies.

The low pressure air from any convenient source is led through a tube 10 controlled by avalve11 into a tube 12 (shown clearly in Fig. 3) passing through the sleeve 6 and boss 5 to a pipe 13 (Fig. ,2) communicating with a; pipe 14 (Figs-1 and 2) which enters the shell or. casing 15 of. the plunger. The rear en of the pipe. 14 is blocked, and merely rves for the attachment of the plpe airfrom any convenient source is led through a tube 17 to the'annular space 18 surrounding the tube 12, thence through an inclined assage 19 (Figs. 3 and 4) to a pipe 20 Figs. 1 and' 2) entering the casing 21 of a double-acting valve controlling upper and lower ports in the cylinder 8.

The action of the turnover mechan1sm 1sas follows :With the parts in the posltion shown in Fig. 2, the stem 22 of the valve,

which stem is L shaped at its outer extremity, is engaged and held up by a claw or socket on the fixed boss 7, so that air enters the lower part of thecylinder 8 and keeps up the piston therein; the piston rod 23 is linked to cranked levers 24, which levers keep the parison closed. The parison having been charged, the workman pushes the handle to his right and the handle 26 to his left, rotating the tubes 6 and 12 to the extent of half a revolution and bringing the parison 9 down, and the air cylinder up into the position indicated in Fig. 1. As the cylinder rises, the foot or extremity of the valve stem 22 engages an incline or cam surface 27 .on the .fixed boss 7, which presses-in the valve stem and causes air to be admitted to the other side of the piston,iforc ing out the piston rod 23 and rocking the levers 24 so that the two halves of the parison separate. 'lhe plunger is then lifted out of the bottle neck by means of the handle 28, the paddle .29v operated by means of the handle 30,'the

I thehigher I a rotatable frame, 40 and; an; air cylinder mechanlsm operated 4 separating the mold, a

finishing mold'3 closed, the handle 16 opt-he. bottle,

and low pressure pipes may be connected to each other by a cross pipe 31 com-' prisinga valve-32 which is normally closed; this valve being opened and the inlet,

but

valve 11 of the lowpressure pipe 10 closed,

pressure. air can beused both for working the parison mold and forblowin'g the I. bottle,-

1. glass blowing machine comprising a divisible parison'moldl moun te'd on the frame, from the cylinder for. separating the mold, an air supply pipe connected *with the blowing shell. of the mold,

a pressure pipe, communicating with an annular passage forme'di' agefwith mg l machine comprising a rotatableframe, *a' dlvisible parison mold and'an air-cylinder mounted on the frame, mechanism operated from the cylinder for valve controlled pipe connected with-the blowing "shell of the mold, a low pressure pipe communicating with the valve controlled pipe, a high pressure pipe communicating with an annular pass the plunger to blow; v the ring mold and finishing mold 'y opened, and the bottle removed, The fixed c if the (metal be at any time too; shit for molding. at the lower pressure. I I l l Veclaim as our invention said'tube with said blowing shell, a low 'cross pipe connecting the passage formet in the journal of the frame, and conduits c nnecting the annular passage with the air cylinder.

3. A glass blowing machine comprlsmg a rotatable frame, a divisible parison mold and an' air-cylinder mounted on the frame, mechanism operated from the ylinder for separating the mold, a valve controlled pipe connected with the blowing shell of the mold, a low pressure pipe communicating with the valve controlled pipe, a high pressure pipe communicating with an annular passage formed in the journal of the frame, conduits connecting the annular passage with the air cylinder, a cross pipe connecting the low and high pressure pipes, a valve in the cross pipe, and a valve in the low pressure pipe'below said cross pipe.

4. A glass blowing machine comprising a rotatable frame,';-a"fdivisible'parison mold anonhted thereon embodying 'a blowing shell, an air cylinder mounted on the frame,

g'the mold, a valve casing on the thela'tter, a valve controlled pipe connectsing said "tube withsaid blowing shell, a low pressure pipe connected to said tube, a high pressurepipe communicating with the ann'ularpassage, andcondu ts connectlng the .l'atteriwith-thevalve casing. 'A- glass. blowing machine, f a-rotatable framepa divisible parison mold -mounted thereon embodying a blowing shell, an air cylinder mechanism operated comprising mounted on the frame, from the cylinder for separating the. mold, a valve casing on the for said frame, a tube in a valve controlled pipe connectpressure pipe-connected to said tube, a high pressure pipe communicating with the an nular passage, conduits connecting the latter with the valve casing, a valve controlled high and low pressure pipes, and a valve in the low pressure pipe below the cross pipe.

In testimony whereof we afiix our signatures, in presence of two witnesses.

FREDERICK WILLIAM KNllWLES. GEORGE WILLIAM INMAN.

Witnesses:

ERNEST PRIESTLEY NEWTON, JOSEPH LANCASTER FLEMMING.

Zmechanism' operated from the cylinder for 

